Best Placing for a live band show ?

I have recently moved into the area of band lighting for a local band i work with and have purchased several items including a KAM 1000 3D laser and the Pangolin Quickshow software which i am slowly learning my way about with.

My question to you all is "what would be the best placing to use waves and the such like with a haze machine to create the most stunning effect without the danger of hurting anyone?"

I have a truss that will go to a height of 4mtrs and can also fix the laser to the side poles if thats advisable?